It seems my car (and every other TT I've driven) hits the rev limiter at 6K RPM in first gear.

1. Does anyone know where the factory redline is set in a 2002 K24 car (probably the same in K16 cars)? Is this redline different based on which gear is selected?

2. I have a GIAC K24 flash performed by Lucent. Is the redline any different than stock? If so what is the setting in different gears?

Finally, does GIAC allow for custom redline programming?

 

In my '02 GT2, the rev limiter doesn't kick in until almost 7K RPM, even in 1st gear. I'm thinking the limiter is set pretty close to 6700-6800 on the K24 cars (at least on the GT2).

My 993TT had a GIAC flash and the rev limiter was raised approximately 500 RPM beyond stock.

 

On my 03 GT2 with GIAC it is 7k in all gears. Prior to GIAC it was 6500

 

Hi Ari,

The redline is 7k. Your engine speed may be slightly ahead of the tach in first gear.

If you want we can check it with the scan tool and log some first gear runs and see what the ecu samples.

Send me a pm or email and we can set up a time.

Take care.

Jeff Moss

 

Same with my car, except i have FVD's tuning!

 

I thought stock REDLINE == 6750 rpm

can someone tell me different ??

MK

 

Just curious, is the redline raised from stock in the standard GIAC flash for K16 cars?

If so, by how much? If it's raised, it seems like it could potentially record 1000s of incorrect type 2s on a "spirited drive" eveytime the stock redline is exceeded.

 

for the minimal performance gains in uping the redline I personally would avoid it. Each 500rpm more on the engine really takes its toll on the engine overall.
Look how often the Cup engines need rebuilds.

 

Agreed, but does a regular GIAC flash on a K16 car raise the redline by default or is raising the redline something that is custom tuned?

 

I don't think that the type 2's are recorded unless the engine hits the actual limiter and disengages the clutch for that split second.

 

With GIAC my understanding is the red line is not raised unless you ask for it.

 

I thought so also (that the limiter is not raised with the GIAC flash), but I also read somewhere that the flash raises the redline 500 RPM by default. Wasn't sure which was accurate ...

 

On the track i only run to 6k because of the extreme wear up near redline repeatedly, what about you?

 

My research indicates that your red line remains stock unless you request it be raised when you get a ECU upgrade.

The Factory limiter/redline is 6750-period. First I have heard of a lower cut in with 1st gear. My GT2 definitely goes to the Factory 6750 in 1st.

The ECU records ANYTIME you touch 6750 rpm as a Type 1 and ANYTHING over 6750 rpm as a Type 2. 6751 rpm will give you the same Type 2 hit as 7500 rpm. [we are talking the 996 series ecu here].

As quickly as these spool in 1st a 6k cut off would save you from a lot of Type 1 & 2s and I imagine the real world performance would only be minimally affected.... hummm...
JR

 

That's interesting ... so some folks purposely lower the redline as well??

If say when accerating hard in first, you bump the limiter, is there ANY chance of a type 2 happening? i.e. can the force of accelerating up through the gears carry it through the 6750 limit (say to 6751), even though the rev-limiter cuts in. Not sure if this even makes sense, but was thinking about it and figured I'd ask ...